Ever wanted to see all documents that are checked out right now and deal with them all in one go? Not only the ones checked out to you? here is the CAML syntax for your Content and Structure Reports Library located at the root of your publishing enabled SiteCollection:
<Where><Geq><FieldRef Name="CheckoutUser" LookupId="TRUE"/><Value Type="int">0</Value></Geq></Where>
Simply create a new Item in that list with the above text for the CAML syntax, give it a Title and meaningful description and you're set!